News
Firmware update for Canon RF Mount lenses
Firmware
2025.10.23
Thank you for using Sigma products.
We are pleased to announce that the download of firmware for SIGMA's RF Mount is now available.
The changes in this firmware are as follows:
【Applicable product and version】
・Sigma 17-40mm F1.8 DC | Art Ver1.0.1 for Canon RF Mount
【Benefit of the update】
・Improved the in-body image stabilization effect when the lens is attached to the camera.
【How to update】
Please select the applicable product from the following page, go to the download page, click "Canon RF mount", read "Before updating" prior to updating the firmware and follow the update procedure
https://www.sigma-global.com/en/support/firmware/?category=lenses&mount=canon_rf
For further information, please contact your nearest authorized SIGMA subsidiary / distributor.
https://www.sigma-global.com/en/world-network/
We appreciate your continued support for our company and products.